• High efficiency synchronous buck regulator with up to 97%

efficiency

• Power-good (PG) output with a 1ms delay

• 2.8V to 5.5V supply voltage

• 3% output accuracy over temperature, load, line

• 3A output current

• Start-up with prebiased output

• Internal soft-start - 1ms

• Soft-stop output discharge during disable

• 35µA quiescent supply current in PFM mode

• Selectable forced PWM mode and PFM mode

• External synchronization up to 4MHz

• Less than 1µA logic controlled shutdown current

• 100% maximum duty cycle

• Internal current mode compensation

• Peak current limiting and hiccup mode short-circuit protection

• Over-temperature protection

• Small 16 Ld 4mmx4mm QFN

• Pb-Free (RoHS compliant)